ASTM E296-1970(2010) 用于空间模拟器的电离压力计的标准实施规程

作者:标准资料网 时间:2024-05-09 16:30:27  浏览:8496   来源:标准资料网

【英文标准名称】:StandardPracticeforIonizationGageApplicationtoSpaceSimulators
【原文标准名称】:用于空间模拟器的电离压力计的标准实施规程
【标准号】:ASTME296-1970(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1970
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E21.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Ionizationmaterials/applications;Simulatedservicetest--spaceenvironment
【摘要】:1.1Thispracticeprovidesapplicationcriteria,definitions,andsupplementalinformationtoassisttheuserinobtainingmeaningfulvacuumionizationgagemeasurementsbelow10x2212;1N/m2(10x2212;3torr)inspace-simulationfacilities.Sinceavarietyofinfluencescanalterobservedvacuummeasurements,meansofidentifyingandassessingpotentialproblemareasreceiveconsiderableattention.Thispracticemustbeconsideredinformational,foritisimpossibletospecifyameansofapplyingthevacuum-measuringequipmenttoguaranteeaccuracyoftheobservedvacuummeasurement.Therefore,theuser''sjudgmentisessentialsothatifaproblemareaisidentified,suitablestepscanbetakentoeitherminimizetheeffect,correcttheobservedreadingsasappropriate,ornotethepossibleerrorintheobservation.1.2Whilemuchofthediscussionisconcernedwiththeapplicationofhot-cathodeionizationgages,noexclusionismadeofcold-cathodedesigns.Sinceagreatdealmoreexperiencewithhot-cathodegagesisavailableandhot-cathodedevicesareusedinthemajorityofapplications,thepresentemphasisisfullywarranted.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalentsofinch-poundunitsmaybeapproximate.
【中国标准分类号】:V73
【国际标准分类号】:49_140
【页数】:14P.;A4
【正文语种】:英语